Convert RAR to EPUB Online or with the PHP SDK

RAR is a compressed archive container. It holds one or more files in less space than they occupy on disk, which is why manuals, collections and long books are distributed in that form. E-reading software cannot open the container, only the document stored within it.

EPUB is the format that e-reading applications support. Its text reflows to match the screen width and the chosen type size, so one file suits a phone, a tablet and a dedicated reading device equally well. Producing EPUB from the packed document turns a download into something readable.

GroupDocs.Conversion Cloud opens the archive, reads the document held there and writes EPUB. Whole documents, single pages or page ranges may be selected, output can carry a watermark, the result can be password protected, and scanned input is handled with OCR.

The PHP SDK wraps these calls for PHP projects and each one is authenticated with a Client ID and Secret. The interactive API Explorer shows the request and response shapes, and a trial period is available before any subscription begins.


  • Convert RAR to EPUB via Python
  • Convert RAR to EPUB via Ruby
  • Convert RAR to EPUB via Node.js
  • Convert RAR to EPUB via .NET
  • Convert RAR to EPUB via Android
  • Convert RAR to EPUB via Java
  • Convert RAR to EPUB via Go
  • Convert RAR to EPUB via cURL

Convert RAR to EPUB Online or with the PHP SDK

Free conversion Apps for Popular Formats

RAR to WMF RAR to HTML RAR to MHT RAR to DOC RAR to PPTX RAR to PDF RAR to ODP RAR to EMF RAR to PSD RAR to HTM RAR to DOCX RAR to DIF RAR to XLSM RAR to RTF RAR to XLS RAR to DICOM RAR to DOT RAR to SVG RAR to CSV RAR to PNG RAR to JPEG RAR to PPT RAR to XLT

How to convert RAR to EPUB

  • Select the file by clicking the RAR to EPUB App or simply drag & drop a RAR file.
  • Click the Convert button to upload RAR and convert it to a EPUB file.
  • Click on the Save button when it appears after successful RAR to EPUB format conversion.
  • That is all! You can use your converted EPUB document as needed.

Frequently Asked Questions (FAQ)

Is there a mobile SDK available for building Android apps?

Yes. GroupDocs Cloud offers a native Android SDK, the Conversion Cloud SDK for Android, enabling developers to directly integrate document processing capabilities into their Android applications.

How does GroupDocs.Conversion Cloud handle large sized RAR files in PHP during conversion?

GroupDocs.Conversion Cloud is built to handle large RAR files smoothly. Whether you are working with a small document or one that is several gigabytes in size, the API keeps conversions fast and accurate without hitting performance issues.

Can I customize output formats (e.g., adjust image quality, PDF compression, or page ranges)?

Yes, the APIs provide advanced customization options, such as setting image quality for PDFs, specifying page ranges for conversion, and adjusting compression levels. Refer to the documentation for details.

Can I integrate GroupDocs.Conversion Cloud into my CI/CD pipeline for automated document conversions?

Yes, the API is built to support automation workflows. You can easily integrate it into your CI/CD pipeline using the available SDKs for .NET, Java, PHP, Ruby, Android, Go, Python and other platforms. This allows you to trigger document conversions automatically during builds, deployments or post-processing steps.

Can I preview a RAR file before converting it to EPUB using the API?

Yes. GroupDocs.Conversion Cloud supports document preview feature before conversion. This helps ensure layout accuracy, check formatting and make informed decisions before committing the final conversion.

Are there any SDKs available for GroupDocs.Conversion Cloud APIs?

GroupDocs.Conversion Cloud provides SDKs for various programming languages such as .NET, Java, Android, PHP, Node.js, Python, Ruby, cURL and Go, making it easy to integrate into different development environments.

Is there a limit on the number of conversions I can perform using GroupDocs.Conversion Cloud APIs?

GroupDocs.Conversion Cloud APIs offer flexible conversion limits based on your subscription plan. Contact GroupDocs support for more information on conversion limits.

How accurate is the conversion for complex layouts (e.g., tables, embedded fonts)?

Our engine maintains the original formatting with 99% accuracy, particularly for tables and vector graphics; however, in edge cases, fallback rules may be customized.

Can I add my own watermark when converting RAR file to EPUB in PHP?

Yes, you can. The API lets you add your own text or image watermark to the EPUB while converting. It’s a great way to include your branding add copyright notices, or mark documents as confidential.

What file formats are supported by GroupDocs.Conversion Cloud APIs?

GroupDocs.Conversion Cloud APIs support a wide range of file formats including Word, Excel, PDF, and more. Refer to the documentation for the full list of supported formats.

How do I convert only specific pages or a page range from RAR to EPUB?

GroupDocs.Conversion Cloud allows you to define custom page ranges for conversion. You can select specific pages (e.g., 1, 3, 5) or page ranges (e.g., 2–6) using the Pages parameter in your API request.

How secure is the conversion process in GroupDocs.Conversion Cloud?

GroupDocs.Conversion Cloud ensures a secure conversion process by encrypting data in transit and at rest, and by following industry-standard security protocols.

Does GroupDocs.Conversion Cloud provide OCR when converting scanned RAR files to EPUB?

Yes. you can use OCR (Optical Character Recognition) in GroupDocs.Conversion Cloud API Settings when converting scanned RAR files to searchable EPUB files. GroupDocs will automatically search for any scanned images in your RAR files, enable OCR based on your preference, extract and convert the text into a searchable EPUB.

Does the API support integration with cloud storage providers like AWS S3, Azure Blob, or Google Drive?

Absolutely. GroupDocs.Conversion Cloud offers built-in integration with popular cloud storage platforms, allowing direct file retrieval and output saving without intermediate uploads.

Can I automate bulk RAR to EPUB conversions using GroupDocs.Conversion Cloud APIs?

All of the GroupDocs.Conversion Cloud APIs allow batch processing and conversion of individual RAR files to EPUB in one API call. This feature is quite useful for enterprises working with large document workloads.

Can only part of the document become an EPUB?

Yes. A conversion request accepts a single page or a range of pages in place of the entire document, which helps when one chapter of a long manual is all that a reader actually wants on a device.

Is there a cost for converting RAR to EPUB?

The browser application converts occasional files at no charge and requires no account. Conversion through the PHP SDK runs on a subscription, and a free trial is offered so that the request flow can be tested before a plan is chosen.

What RAR to EPUB Conversion API can do?

Convert RAR to EPUB page by page or custom range of pages

Watermark RAR pages

RAR conversion APIs are secured and require authentication

Password protect EPUB output document

RAR conversion API explorer based on swagger collection

Convert RAR across all common file formats

File Format Conversion

Convert documents between various file formats such as Word, Excel, PDF, and more.

Secure Conversion Process

Securely convert documents without exposing sensitive data to third parties.

Free online conversion Apps for RAR

Convert unlimited documents and images using our Free online conversion Apps

Batch Conversion

Convert multiple documents simultaneously for improved productivity.

Scalable Performance

Efficiently convert large volumes of documents with high performance and reliability.

User-Friendly Interface

Intuitive interface for seamless navigation and operation.

Compliance and Security

Ensure compliance with data security regulations and industry standards.

Version Control

Maintain version control of documents through efficient conversion processes.

High-Quality Output

Maintain the quality of the converted documents with accurate formatting and layout.

Document Preview

Preview documents before conversion to ensure desired output.

OCR Support

Benefit from Optical Character Recognition (OCR) to convert scanned documents into editable formats.

Customizable Output Formats

Choose from a variety of output formats to meet specific needs.

Comprehensive Documentation

Access detailed documentation and support resources for easy implementation.

Security and Authentication

The GroupDocs.Conversion Cloud API is secured and requires authentication. You need to register at GroupDocs Cloud and get the app access key ID (appSID) and app secret access key. Authenticated requests require a signature and AppSID query parameters or OAuth 2.0 authorization header.

Document Metadata Preservation

Retain important metadata during the conversion process for better document management.

Document Watermarking

Add watermarks to converted documents for branding or security purposes.

API Explorer

The easiest way to try out GroupDocs.Conversion Cloud API right away in your browser is by using GroupDocs Cloud Web API explorer, which is a collection of Swagger documentation for the GroupDocs Cloud APIs.It allows you to effortlessly interact and try out every single operation our APIs exposes.

API Integration

Easily integrate conversion capabilities into your applications using APIs.

Scheduled Conversions

Schedule conversions at a convenient time to optimize resource utilization.

Collaborative Workflows

Facilitate collaboration by converting documents for sharing and editing.

Configurable Conversion Options

Customize conversion settings such as conversion quality, page range, and more.

Free Apps to Convert RAR to Multitude of Document Formats beside EPUB

GroupDocs.Conversion REST API has the capability to perform document conversions on a number of document formats. It converts accurately making sure that the details are preserved while converting the document.

Cloud-Based Solution

Access the conversion services from anywhere with internet connectivity.

Free Apps to Get Started and convert RAR to EPUB in No Time

With GroupDocs.Conversion Cloud API, you can start converting your files right away as there is no need to install anything. The API is clearly documented and comes with SDKs and live examples for all major languages. Our GroupDocs.Conversion SDKs along with working examples hosted at Github helps our users to get started in no time.

Support and Learning Resources

Convert RAR to EPUB using SDKs in other popular languages

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